Not quite a Fuzz Friday, but a Filter Friday I guess. Goes hand in hand with some fuzz though. The Sound Saw has two different passive filte...

Here's a cool little bass filter pedal designed by bleepboxes. Really low parts count should make for a pretty quick build. Original inf...

Here's Run Off Groove's take on the Dr. Q by JD Sleep with mods and improvements suggested by Mark Hammer and Jack Orman. More info,...

It's a Fuzz and Filter Friday! Here's DBA's Kill Kill Filter. At it's heart is a stripped down Big Muff (only one distortion...

Switching it up this week and doing a Filter Friday. This one could be used for both synth and guitar/bass. It's a cool filter effect ba...

Here's an unreleased version of the Evil Filter. It's similar but not quite the same as the original. The schematic was pulled from ...

The Funk Machine is a filter effect that can be used on either bass or guitar (or synth, Rhodes, harmonica, etc). It's also like an auto...

The FX25 was initially produced by DOD in the early 80s and is an OTA-based envelope filter/auto-wah. It's a fairly tweakable and you ca...

The Dr. Quack is Jack Orman's improvement on the EHX Dr. Q envelope filter. Basically, there's an added input buffer to increase the...

Here's a rare one that came in via the request folder. It's a distortion/filter effect. Used live by guitarist Kevin Sheilds from My...